Abstract
We analyze the electroweak interactions in the framework of the Higgs effective field theory using the available Higgs and electroweak diboson production results from LHC run 2 as well as the electroweak precision data. Assuming universality of the weak current, our study considers 25 possible anomalous couplings. To unveil the nature of the Higgs boson, i.e., isosinglet versus part of $SU(2{)}_{L}$ doublet, we explore the correlation effects between observables that are predicted to exist in the linear realization of the electroweak gauge symmetry but not in its nonlinear counterpart. This improves previous studies aimed at investigating the Higgs nature and the origin of the electroweak symmetry breaking.
Highlights
The CERN Large Hadron Collider (LHC) has accumulated an impressive amount of data which allows to search for direct beyond the standard model (BSM) signals, and to perform precision tests of the standard model (SM)
To unveil the nature of the Higgs boson, i.e., isosinglet versus part of SUð2ÞL doublet, we explore the correlation effects between observables that are predicted to exist in the linear realization of the electroweak gauge symmetry but not in its nonlinear counterpart
In Higgs effective field theory (HEFT) the nonlinear realization of the gauge symmetry allows for independent statistical analyses of the datasets involving corrections to the gauge-boson-fermion and gauge-boson self couplings (EWPO and triple electroweak gauge-boson couplings (TGCs)) and the Higgs interactions since the couplings impacting these two sectors are not connected
Summary
The CERN Large Hadron Collider (LHC) has accumulated an impressive amount of data which allows to search for direct beyond the standard model (BSM) signals, and to perform precision tests of the standard model (SM). In this work we analyze the presently available electroweak data to study the HEFT. ÉBOLI, GONZALEZ–GARCIA, and MARTINES the LHC run 2 data on triple electroweak gauge-boson couplings (TGCs) This allows us quantify observables which depend on the nature of the Higgs boson. Our quantification of the present status of the bounds on some specific composite Higgs models extends that of previous works [19,22–24] by considering the impact of the Higgs kinematic distributions and the full LHC run 2 dataset. The overall picture that emerges from our analyses is that the presently available data is in agreement with the SM, as could be anticipated This allows us to obtain stringent constraints on the Wilson coefficients parametrizing our bottom-up approach.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
